Try Seedance 2.5 Video Editing Online
ByteDance's Seedance 2.5 can edit a video while keeping its motion. Keepframe runs that edit mode for you — upload a clip and one reference image, no API key needed.
Seedance 2.5 is ByteDance's video model (via Volcengine Ark) with text-to-video, multi-reference, editing and extension modes. On Keepframe you can use its video-editing mode without an API key: upload a clip (5 seconds are used), add one reference image, and get a 720p video with the same motion and timing but a new look, for 30 credits. It is not free, and reference photos of real people are declined by the engine.
Facts checked October 10, 2026.
Seedance 2.5 at a glance
| Made by | ByteDance (Doubao Seedance 2.5), served through Volcengine Ark. |
|---|---|
| Modes (model) | Text-to-video, first/last-frame video, multi-reference video, video editing and video extension. |
| Model limits | Single generations up to 30 s; up to 50 reference files; 480p / 720p / 1080p output. |
| What Keepframe offers | Video editing: one source clip (5 s used; upload up to 60 s) + one reference image → same motion, new look. 720p, no audio, no watermark. |
| Price on Keepframe | 30 credits per finished video ($6 = 50 credits); failed or declined videos are refunded. |
| Not supported here | Reference photos of real people (the engine declines them), text-to-video, clips longer than 5 s per video, 1080p. |
Real Seedance 2.5 edits made on Keepframe
Each pair: the source clip (left) and the Seedance 2.5 edit (right). Same motion and timing; the look comes from one reference image. Generated October 1, 2026.
Pet costume + new location
Every stride and ear flop stays; cape, goggles and the beach boardwalk come from the reference.
Product colorway
The turntable spin is identical; material, colors and pedestal follow the reference.
Outfit swap from a product photo
Same dance; jacket and sneakers from a flat-lay reference. The cargo pants came out as shorts — check details.
How to use Seedance 2.5 video editing
1. Upload a clip
Any MP4 or MOV up to 60 s; pick the 5 seconds to edit. One clear subject works best.
2. Add one reference image
The costume, product finish or place you want. Use an outfit or product photo, not a photo of a real person.
3. Generate
About 2–5 minutes. 30 credits are reserved and returned automatically if the video fails.
FAQ
Is Seedance 2.5 free?
Not on Keepframe: a finished Seedance 2.5 edit costs 30 credits ($6 buys 50). Failed or declined videos are refunded. ByteDance and Volcengine price the model per token for API users.
What can Seedance 2.5 do?
According to Volcengine's documentation: text-to-video, first/last-frame video, multi-reference video (up to 50 files), video editing and video extension, with single generations up to 30 seconds.
What does Keepframe's Seedance 2.5 tool do?
Video editing only: it keeps the source clip's motion, timing and camera and changes the subject's look and/or the scene to match one reference image. 5-second clips, 720p, no audio.
Can I use a photo of a real person as the reference?
No. The engine declines reference images that look like a real person. Use an outfit or product photo, a character, or a place.
How long does it take?
Our test videos finished in about 3 minutes.
Do I need a Volcengine or ByteDance account?
No. Keepframe calls the model for you; you only need a Keepframe account with credits.